Rotatable pipe joint



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'Mo QZ'Z@ A U il... N. WEBSTER ROTATABLE PIPE JOINT Filed Aufl. 17

l jections to, and defects in,

l. coupling to be 45 pip; 4.

5.0 wal17 of the coupling bod Patented Oct. 18, 1927.

' UNITED STATES LEO PATENT OFFICE.

N. WEBSTER, OF '.BBENTWOOD, MISSOURI.

. normanna Pira JoiN'r.

Applicationilled Aiigiilt 17,

My invention relates to rotatable, or ilexible pipe joints, or couplings, water, steam, etc., and, it is a distinct and practical imrovement to overcome certain practical obthe present types of flexible pipe joints.

The object of my invention is to provide a ipe joint, or coup ing provided with an outet pipe so constructed as to permit the revolved or rotated about a feed pipe, withoutffear of breakage ot any of the parts thereof and to prevent leakage around the feed pipe.

A further object of provision of a rotatable pipe Joint n will possess advantages in points of simplicity and eiciency, and, at thesame time prove manufacture.

the invention the which 9 With the aboveand other objects in view,

the invention consists in the novel features itself comparatively inexpensive iny i925. semi No. 50,629.

providing an outer ground bearing surface 9 and a right angular bearing surface 10. The bore 8 is provided with internal screw threads 11 which extend from the bearing surface 10 to the free end of the bore 8, as shown in Fig. 3. The bore 8 is beveled at its outer end to provide a packing seat 12.

The reference numeral .13 designates a supply pipeL having threaded, as at 14. The supply pipe 13 is provided near its inner end with a peripheral flange 15 having a ilat inner face 16 and a beveled outer face 17. The supply pipe extends beyond the flat front face 16 a suitable distance and it is mounted in the bearing 6 with the at inner face of the flange l5 in contact with the outer flat face 9 of the wall 7 and the peripheral face ofthe flange in contact with the bearing face 10 of the bore 8. This arrangement provides an eicient bearing support for the inner of construction, arrangement and combinaend .of the supp'ly pipe, as clearly shown in tion of parts hereinafter more fully de- Fig. 1.. scribed and iina'lly pointed out in the claims .A suitable bearing sleeve 18 is mounted .on

u' hereto appended.

to the accompanying drawings forming a part of this'specification wherein like characters of reference denote similar parts throughout the several views:

Referring 30 Fig. 1, is a-sectional view of a rotatable pipe joint, or coupling constructed in accordance with my invention.

Fi 2, isv an end elevation thereof showing A, the elivery pipe. in four diierent positions u of, a circle.

Fig. 3, is a sectional view of the body of the coupling.

Fig. 4, is a side elevation of the feed2 or su ply pipe forming a part ofthe coupling.

gn carrlying out theJ aim of my present .invention, employ a coupling body` 1 having a central chamber 2 communicating with an internall screw threaded outlet opening 3 into which is screw threaded a delivery isposed at a right angle to the outlet opening 3, although not necessarily soz and communicating with the chamber ,2,- is an opening 5 which provides a bearing 6 in the y 1, as shown in Fig. 3.

Communicating with the bearing operav ing 5 is an opening or bore 8 which is` o f a larger diameter than the opening 5 thereby .face 17 The bearing sleeve the supply pipe 13 Yand is provided with external screw threads for screw threaded connection withthe internally screw threaded bore 8. The/ inner facey 19 of the bearing sleeve is ybeveled for frictional and leak proof contact with the inclined outer of the flange 15, as clearly shown in Fig. 1. The outer end face of the bearing sleeve 18 is beveled, as at 20 to lie in a plane with the inclined or beveled end face of the coupling body 1, as clearly shown in Fig. 1.

` 18 is held from rotation after once being adjusted against the pipe flange 15Iby means of a pair of dowel pins 21 which are receivable in openings 22 drilled half in the coupling body 1 and half in the bearing sleeve 18, asA clearly shown in Fig. 2.

The numeral 22 designates an internally screw threaded packing gland havin screw threaded connection with the externa screw threads 23 of the body 1 and is provided with an opening 23 in its end wall 24 for the passage pipe 13 which extends therebeyond, as shown in Fig. 1. The inner face of the `end wall 24 of the packing gland 22 is beveled, asv at 25.

A ysuit-able packing space 26 is arranged between the outer beveled faces of the body of the outer end of the supply its outer end screw suitable drain opening 29 which communifl Cates With the central 1 and it is closed screw plug 30.

The ground the supply pipe flange face chamber 2 of the'body by means ofr a suitable suitable screw plug 32. y

In order to provide lubrication to the flange surfaces 16 and 17 and to the bearing surfaces 9 and 10 of the body 1, the screw plug 32 is removed and the duct filled with lubricant after which the plug 32 is again replaced.

l/Vhen it is desired for any purpose to support the coupling body 1 by other and additional means than the supply pipe 13, I secure the cou ling body 1 to the end of a supporting shat or other element 33 which is rotatably mounted in a suitable bearing 34. This arrangement is not necessar in classes of Work to which the device is a aptable, but Where the coupling body 1 requires a more substantial support than that provided by the supply lsjulport 33, or an equivalent support for the It is evident from the foregoing description, that my rotatable joint or coupling is not limited in its use to any particular class of Work, but is capable of use in connection with the booms of steam shovels, dredges,

.and other apparatus having movable parts b conveying steam, water, gas, oil, air, chemicals,V etc., and is adapted for use in connection with laundry apparatus, packing house apparatus and in fact it is a universal leak proof joint that can be put into usev Wherever a fiexible, swivel, or rotary joint, or coupling is required that will not leak.

he many advantages of the herein deb scribed invention will readily selves to those skilled appertains.

I do not wish to be understood as having limited myself to the exact details of construction shown and described, but desire to have it understood that the invention I have shown in the drawings is merely illustrative, as it is manifest that various minor changes may be made in the exact construction and arrangement of parts Without departing from the spirit of my invention, hence I reserve the right to make any such suggest themin the art to which it `bracing the tapered face pipe nipple 13, I use aV changes, or modifications as may fairly fall Within the scope of the appended claims when fairly construed.

What I claim is:

1. In a pipe coupling construction, a coupling body internally screw threaded at one lend, a ground faced shoulder at the inner end of said internally screw threaded portion of the body, a bearing in advance of said shoulder, a supply pipe, a peripheral ange on said pipe having its outer face tapered, said flange having its inner face fitted for leak proof engagement with said shoulder and adapte-d for connection with a pipe at its outer end, the inner end of said suppl pipe extending beyond the peripheral ange and receivable in said bearing. a

i bearing sleeve having screw threaded engagement with the coupling body and mounted upon said supplv pipe, the inner face of said sleeve being tapered and em- ,of the flange, a lock pin to prevent rotary displacement of the bearing sleeve, compressible packing disposed around the supply pipe and against the end of the coupling body and said bearing sleeve, a packing gland having screw threaded lengagement with the peripheral face of the coupling body and a lock nut eiligaging the inner face of the packing gan 2. In a pipe coupling construction, a coupling body internally screw threaded at one end, a ground faced shoulder at the inner end of said internally screw threaded portion of the body, a bearing in advance of said shoulder, a supply pipe, a. peripheral fiange fitted for leak proof engagement with said shoulder and adapted f tion with a pipe at its outer end, said flange having a tapered outer face, the inner end of said supply pipe extending beyond the peripheral flange and receivable inl said earing, a bearing sleeve having screw threaded engagement with the coupling body and mounted upon said supply pipe, the inner end of the sleeve being tapered an engaging with the tapered outer face of the fl a lock pin between the sleeve and coupling bod to prevent rotarydisplacement ofthe earing sleeve, compressile packing disposed around the supply pi e and against the end of the coupling body d said bearing sleeve, a packing land aving screw threaded engagement wit the peripheral face of the coupling body, a lock nut engaging the inner face of the packing gland, said coupling body having a drain opening, a closure for said drain opening, an oil passage within the coupling body di-v rected to the bearing face of said ground faced shoulder and a closure for said Oil passage.

3. In a pipe coupling structure,

provided lia'sinsgsazi;

with a ground outer face, a bearing forming a. part of said iiange.I internai and external screw threads for said female member, a tubular male member haring a peripheral flange near its inner end and haring its outer face tapered, the inner end of the male member being snpporied in said bearing and the flange oi said male member rietionaily embracing the ground face ofthe internal ange, a 'bearingr sleeve engaging 'rile inten nai screw threads of the female member and snugly mounted upon the male memben the inner face of the sleeve being tapered and embracing the outer tapered face of the flange of the male member, a coinpressibie packing disposed around the male member and engaging the oner ends of the female member and the bearing sleeve, a packing giand engaging the externai screw threads of the emale member and the packing and a lock nut for said packing gland.

A. In a. rotatable pipe coupling structure,

a. stationary supply pipe nip 1e, a. perisheral ange for said nipple iiaving s. 4 at iront face and an inclined rear face, screw threads at ihe outer end of said nipple for eonneenion with a feed pipe, a coupling body having an internal ange, an internal bearing adjacentt said ange to receive the inner end of the nipple, a sleeve bearing having inwardly yneveied ends mounted upon the niD- ple and the inner end thereof engaging tiie inclined face of the nipple iange, means to prevent rotary displacement of the sleeve in the coupling body, a eompressible packing surrounding the nipple and engaging the outer ends of the coupling body and the bearing sleeve, a packing giand iiaving screw threaded engagement with the oonpling body and a iock ring for said packing gland.

In estnnony whereof, I l here hereunto signed my name to the specification.

LED N. WEBSTER. 

